Investigation of granite fracture under three-point bending using the meso-modeling approach considering the random distribution of poly-crystals
文献类型：期刊论文
| 作者 | Li, Xiaojing1,2; Bai, Yifan2; He, Peijie2; Yue, Xiaolei2; Zhang, Yan2 |
| 刊名 | ARABIAN JOURNAL OF GEOSCIENCES
 |
| 出版日期 | 2020-08-28 |
| 卷号 | 13期号:17页码:14 |
| 关键词 | Modeling method Poly-crystals Damage Fracture characteristic Crack propagation |
| ISSN号 | 1866-7511 |
| DOI | 10.1007/s12517-020-05784-y |
| 英文摘要 | A three-dimensional meso-modeling approach based on Weibull distribution for rock is proposed to study the fracture behavior of rock. And the macro-meso model of granite with random poly-crystals is developed for numerical studies. By controlling the kinetic energy of the model system and combining the erosion criterion, a method for accelerating the calculation of quasi-static problems is presented. Through the comparative analysis of numerical simulation and experimental test, the applicability and reliability of the modeling method in the study of spatial heterogeneity of rock materials are verified. Using finite element analysis, the fracture characteristics of granite at different loading rates are obtained. The effect of loading rate includes the following aspects: (1) the tensile strength and fracture toughness increase with the increase of loading rate; (2) the dynamic damage evolution process varies greatly under different loading speeds; (3) the increase of loading rate accelerates the crack propagation, and some cracks that originally propagate along the poly-crystals surface will propagate along the block. These studies offer a meso-scale strategy to study the fracture growth of rock. |
| 资助项目 | National Natural Science Foundation of China[51979156] ; National Natural Science Foundation of China[51779134] ; National Natural Science Foundation of China[51579142] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z018006] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000567415700006 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/24765]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Xiaojing |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Shandong Jianzhu Univ, Sch Civil Engn, Jinan 250101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiaojing,Bai, Yifan,He, Peijie,et al. Investigation of granite fracture under three-point bending using the meso-modeling approach considering the random distribution of poly-crystals[J]. ARABIAN JOURNAL OF GEOSCIENCES,2020,13(17):14. |
| APA | Li, Xiaojing,Bai, Yifan,He, Peijie,Yue, Xiaolei,&Zhang, Yan.(2020).Investigation of granite fracture under three-point bending using the meso-modeling approach considering the random distribution of poly-crystals.ARABIAN JOURNAL OF GEOSCIENCES,13(17),14. |
| MLA | Li, Xiaojing,et al."Investigation of granite fracture under three-point bending using the meso-modeling approach considering the random distribution of poly-crystals".ARABIAN JOURNAL OF GEOSCIENCES 13.17(2020):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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